Chapter 2: Problem 27
Which of the two following scenarios would be more likely to support life on Earth? 1\. Earth is the same size as at present but has the orbit of Mars. 2\. Earth has the same orbit as at present but is the size of Mars. Explain the reasons you used to support this interpretation. Discuss how the four key characteristics of Earth (liquid water, gravity and atmosphere, life- sustaining gases, magnetic field) described in this section would vary in each scenario.
Short Answer
Step by step solution
Key Concepts
These are the key concepts you need to understand to accurately answer the question.